IMRA is licensing US Patent No. 5,818,630 "Single-Mode Amplifiers and Compressors Based on Multi-Mode Fibers," which involves subassemblies based on Nufern's large-mode area (LMA), double-clad (DC) fibers.

"This IMRA technology can allow Nufern to add more value to customers of Nufern's LMA DC fiber-based standard and custom subassemblies, providing enhanced performance and power scaling attributes," said Martin F. Seifert, president and CEO of Nufern.